I was looking for a fun way to get my kids to practice basic math (multiplication & division) through game. The result is this project Magical Math Smasher that tries to combine classic bounce mechanics in 3D, action "magical" shooting and incentive for solving random math challenges. Children (and adults too, me including) generally love it and very soon start to look at math challenges as a fun way to improve their gaming results (correct results give them 100% magic to fire) and, of course - who doesn't like to demolish stuff just for the fun of it? As game puts some strain on players coordination and concentration skills, there are several levels and "rooms" to choose from. I plan to add them more in the future. It's a browser game, made with javascript tools (three.js being the main one) together with wasm (using rust).